US1699673A

US1699673A - Pulling-over mechanism

Info

Publication number: US1699673A
Application number: US711846A
Authority: US
Inventors: Charles F Pym
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1924-05-08
Filing date: 1924-05-08
Publication date: 1929-01-22
Anticipated expiration: 1946-01-22

Description

c. F. PYM

PULLING-OVER MECHANISM 2 Sheets-Sheet l Jan. '22, 1929. 1,699,673

C. F. PYM

PULLINGOVER msbmmxsu Filed May 1924 2 Sheets-Sheet 2 WVE/VTUR p eam s arn'r OFFICE.

l etenteol Jan. 22, lglth.

U l l T E ll T i CHARLES E. PYIJI, F BEVERLY, MASSAGHUQETTS, ASSIGNQR TO UNITED SHOE MA,- CHENERY CQRPORATION, OF IPA'IERSOIT, NEW JERSEY, A CORPORATION OF NEW JERSEY. 1

PULLILNG-OVER MECHANISM.

Application filer} May 8, 1924. Serial l lo. 71 1,8et6.

the upper and for laying its margin inwardly.

over the bottom of the last and fastening it.

The invention is herein shown as embodied in what may be termed a gripper and tacker unit, comprising gripping, tacking and win ing means so combined and organized as to move as a unit at certain times in the operating cycle, and features of the invention are to be recognized in various novel aspects of such an organization, as well as in the provision of means for accomplishing certain special results, as hereinafter more particularly set forth.

One important object of the invention is to guard against any substantial reaction or loss of tension of the upper between the upper pulling operation and the fastening operation. To this end, a feature of the invention consists in novel means for controlling the release of the upper by the gripper,

the construction shown comprising means whereby the opening of the gripper to release the upper is controlled by the shoe to insure a proper time relation between the release of the upper and the operation of means that acts to hold the upper prior to the driving of the upper fastening tacks. More particularly, the construction herein illustrated comprises a controlling member positioned by engagement with the shoe and acting as the gripper and the wiper are moved inwardly over the bottom of the shoe to cause the gripper to relax its grip on the upper, the controlling member serving as part of the means for clamping and holding the upper. It is a further characteristic of the construction shown that the opening of the gripper is gradual and increases only as the holding pressure on the upper increases, thereby further insuring against loss of tension.

in the general organization of upper gripping and fastening means the invention presents various novel features. The construction shown comprises a gripper jaw that is movable to grip or to release the upper and has a tack pocket therein. that moves with said jaw from tack receiving position to tack driving position, the gripper and tacker unit having a tack delivery tube that alines With the tack pocket in one position of the jaw and a tack driver that alines with the pocket when the jaw is in another position. Since the tack is not driven until after the gripper has opened for enough to release the upper, the means above referred to for opening the gripper under control of the shoe is so designed as to bringthe tack pocket into proper alinement with the tack driver irrespective of the distance that the gripper is moved inwardly from the edge of the shoe bottom, In the subsequent return of the parts to starting position, the gripper is further opened, thereby bringing the tack pocket into position to receive another tack.

Various features of novelty are also to be recognized both in the gripper mechanism and inthe tack driving mechanism. In the construction shown the gripper is closed by a springeoperated closing rod that is moved in a direction substantially parallel to the plane of the shoe bottom and is released manually to render it operative, this rod acting through a toggle device to impart upper gripping movement to one of the gripper jaws. To operate the tack driver there is provided a spring-operated member likewise movable in a direction substantially parallel to the plane of the shoe bottom and released automatically ata predeterminedtime in the cycle. It is a further characteristic of the construction shown that the gripper closing rod and the tack driver operating member are returned to starting position in response to return movement of the gripper and tacker unit away from the shoe. Among the objects in view in the provision of an organization embodying these various features are simplicity and compactness in the arrangement of the parts as well as convenience in the operation and control of the different instrumentalities.

The various novel features of the invention will now be more particularly set forth by reference to the accompanying drawings, which illustrate one embodiment of the invention, and will then be pointed out in the claims.

In the drawings,

Fig. 1 is a view in side elevation of a gripper and tacker unit in which the invention is embodied, showing the unit mounted on its movable support in operative relation to,

shoe positioning means, portions of the struc ture being broken away to reveal interior parts;

' tions of the parts when the gripper is closed on the upper;

Fig. 3 is a view similar to Fig; 2, illustrating the positions of the parts at the end of the tacking operation; and

Fig. 4 is a detail View of the shoe clamping device which controls the opening of the pp For positioning the shoe in operative relation to the pulling-over mechanism any suitable means may be provided, that herein shown comprising a shoe rest or support 2 movable in'directions substantially perpendicular to the plane of the shoe bottom as indicated by the double arrow a (Fig. 1). Such upward and downward movements may be imparted to the shoe support any appropriate mechanism, not herein illustrated,

since it forms no partot the present invention.

For pulling-over and fastening the upper it is contemplated that a plurality of gripper and tacker units will be provided about the forepart ot the shoe, and since these units may be substantially identical in construction only one such unit is shown in the drawings toillustrate the features of theinvention. As shown in 1, a supporting member 4 is provided which may be mounted in any appropriate manner for movements in opposite directions substantially parallel to the plane ofthe shoe bottom, as indicated by the double arrow 1) and by dotted lines, and such movements may be etliected at the required times in the cycle of the machine by any suitable operating mechanism, not herein shown, since the present invention is not dependent uponthe particular character of such operating means. i

The gripper and tacker unit comprises a tubular bearing member 6 and a gripper carrier 8 having thereon a projecting tubular member or sleeve it) which extends through the member (i andis closely embraced by an annular hearing 12 formed on the member at the outer end of the latter. l lncircling the member at the opposite end of the bearing member (5 is a bearing collar let in alinement with the annular bearing 12. The bearing member is mounted between a pair of lugs 16 which are "East/on the supporting member i; only one of such lugs being shown in the drawings, and is pivotally supported on these lugs by means of a stud 18 so that the gripper and tacker unit may tip or swing about an axis substantially parallel to the plane of the shoe bottom. A projection 20 on the member 6 in engagement with the lugs 16 serves to limitupward swinging movement of the unit, and'to hold the gripper and tacker unit normally in the position thus determined, the supporting member 4 is provided with a spring plunger 22 in engagement with an arm 24 which is also fast on or integral with the member 6.

Encircling the tubular member 10 adjacent to the bearing 12 is a collar 26 which is keyed to the member 10 as indicated by dotted lines at 28 so that the member 10 may slide lengthwise in its bearings 12 and 14: but cannot turn independently of the collar 26. The collar 26 is formed on a portion of its circumference as a spiral gear which engaged by a worm 30 mounted in hearings in the member 6 and adapted to be turned manually to adjustthe member 10 and the connected parts of the unit about an axis substantially parallel to the directions of movement of the support 4, for a purpose hereinafter (X- plained. Between the member 26 and the bearing collar 14 is a spring compressible through movement of the member 6 relatively to the member 8, as also hereinafter more fully explained, and to hold the parts in assembled relation the tubular member 10 has threaded on its outer end a clamping nut 34. in position to engage the outer end oi the member 6 as a limiting abutment.

Fast on the carrier 8 is a gripper jaw 36, and cooperating therewith is a gripper jaw 38 formed as a slide movable in a guideway in the carrier 8 toward and from the jaw 36 in directions substantially parallel to the plane of the shoe bottom. For imparting gripper closing or opening movement to the jaw 88 there is provided a closing member comprising a rod it) which extends outwardly through the sleeve member 10 and has on its outer end a nut l2having a cylindrical outer surface in bearing engagement with the inner ur'face of a sleeve member la which is between the rod 40 and the sleeve member 1t) and is further utilized for a purpose hereinafter explained. Vithin the sleeve member 4a is a short sleeve i6 which provides an additional bearing for the rod 40 and serves also as an abutment for one end of a spring l8 the other end of which abuts against the nut l2.

To connect the rod 5 0 to the movable gripper jaw 38. a bellc1fanl lever is mounted on a pivot stud on the carrier 8 and one arm of this bell-crank is connected by a link to a head :36 which is fast on the in' ner end of the rod 40. The other arm of the bell-cram; 50 is connected to one arm oi a bell crank lerer 58 mounted on a pivot stud 60 on the slidable gripper jaw 38, the connected arms of the bell-cranks 5i) and 58 thus serving as toggle links to impart rectilinear ll](l\'0- ment to the gripper jaw 38 in responscto the movement of the bell-crank 50 about its pin ot lVhen the parts are in the positions illustrated in Fig. 1, a catch 62 which is pivoted at ()4 on the carrier 8 is in position to engage the head 56 and thereby to hold the rod 40 in the position indicated, against the resistance of the spring 48 which is com-- pressed between the sleeve 4-6 and the nut 42- on the end of the rod, the gripper jaw 88 thus being held in open position.

The construction shown is so designed that the gripper may be closed upon the upper materials at the will of the operator after the margin of the materials has been inserted between the gripper jaws. For this purpose the catch (32 connected by a link 66 to. a lever 68 which is pivoted at on the carrier 8 and is normally upheld by a spring plunger 3y depressing the lever titlthe catch 62 is turned downwardly into position to. release the head 56, whereupon the spring i8, is permitted to expand and impart lnoven'ient towardft-he right to the rod ell), such movement serving to operate the bell-

cranks

50 and 58 to impart closing inoven'ieut toward the loft tothe jaw :38, as illustrated in Fig. 2. After the grippers oi the diiierent units have been thus closed on the upper, upward movement will be imparted to the shoe support 52 to cause the grippers to pull the upper over the last, as will be readily understood.

After the upper has been pulled in response to upward movement of the support 2, each gripper and tar-her unit carried inwardly toward the shoe by movement of its support at, to cause the gripper to carry the margin 01 the upper inwardly over the bottom of the last and the edge of the sole, and in this move ment a wiper 7% which mounted on the movable gripper jaw 38 wipes the margin of the upper inwardly over the sole. It is one of the objects of this invention to cause the gripper gradually to relax its hold on the upper as the gripper is thus moved inwardly, and for this purpose there is slidably supported on the carrier 8 a clamp member 76 (Figs. 2 and 4) which is arranged to clamp the upper on the lateral periphery of the las and to act on the movable gripper jaw 38 to impart thereto an opening movement in response tothe inward movement ofthe gripper carrier. For the purpose o'i suchcontrolotthe gripper, there is mounted on the upper arm of the bell-crank 58 a roll T8 which is arranged to cn aneon one side, a depending tinge on the clamp member '76 and, on the other sit e, a (ltlPGllt'lll'llI finger 82 formed on a slide 84 which is guided by two pins 86 on the member T6 and is nmniallv held by a spring 88 in the position iudirated inl ig. el. .Vhen the grip.

per is fully open, as illustrated in Fig. 1, the rlzunp member 76 is held in retracted position by the action of the roll'iS on the finger 80. han the gripper is tripped to cause it to nri p the upper, the roll 78 acts on the finger 82 to project the clamp member 76 toward and it may be into engagement with the shoe, as illustrated in Fig. 2. When the parts are thus positioned, the roll 78 is seated within a recess formed in the clamp member 76, on one side of which recess is a ram face 90 (Fig. &) on the-clamp member.

Flheu the gripper and tacker unit receives its inward movement (toward the left) to carry the inargii'i of the upper inwardly and wipe it over the sole, the clamp member 76 held stationary by the shoe, thereby causingits cam face 90 to act: on the roll T8 to swing the bell-crank {8; about its pivot 60 on the movable gripper jaw;-

and thereby also to swing the bellforanlr 50 with resulting com pression of the spring l8, the effect; being to impart gradually a positive opening n ovencnlt to the movable gripper jaw- 38 while at e me m r nderi g th sp ing .8 effe tive on the clamping member '76 to hold the upper with gradually increasingpressure at the same time that the wiping, and holding; pressure of the wiper 7% becomes effective on the upper. ts the clamping and wiping pres sures on the upper increase, the gripper is thus caused to relax: its hold on the margin oi the upper and permit it to slip, and finally to release it entirely, as illustrated in Fig. 3. The inward movement of the gripper carrier 8 isliuiited by engagement of the shoe with abutment members 92 positioned at opposite sides 0st the clanlpnieinber 76 and adjuetably secured to the carrier 8 by Qlzllhp' inn" screws 9-1 extending through slots formed in the carrier. Only one of the abutments 92 is visible in the drawings, but it will be understood that a similar abutment is positioned at the opposite side of the clamp member 76. lVhile the abutments 92 are thus adjustable to vary the distance that the gripperand wiper may move inwardly over the bottom of the shoe and the distance of the upper holding tacks from the edge of the shoe bot tom, iti s desired, for a purpose hereinafter explained, that the opening movement of the gripper jaw 38 under control of the shoe shall have the same limitunder all conditions, To this end, the cam face 90 on the member 76 ends in a straight horizontal face 96 (Fig. 4) which determines in all cases the limit of swinging movement of the bollscranli 58 un der control of the shoe.

It will be observed that when the parts are positioned as illustrated in Fig. 3, the shoeengaging end of the clamp member 76 is retracted as far as the abutments 92, the finger SO beingspaced at that time from the roll 78. The roll, however, is in engagement with the linger 852, as a result oil which the spring 658 is con'ipressed and thereby serves still to hold the clamp member against the shoe with considerable pressure. Vihen the parts are returned to starting position, as hereinafter more fully explained, the spring 88 brings the fingerSO again into engagement with the roll i8, and the roll by its action on this fin- ,e'er returns the clamp member 76 to the position illustrated in Fig. 1.

For fastening the upper in pulled-over posit-ion, the movable gripper jaw 38 is provided with one or more tack pockets or holders 98, eachadapted to receive and position a tech 6,

as illustrated in Fig. 1. It will be under stood'that the number of tacks which should be driven in the vicinity of each gripper and wiper will depend upon where the gripper and tacker unit is located along the edge of the shoe bottom, and that whether the mechanism is constructed to drive one tack or more than one is merely a matter of duplication.

It will further be understood that the wiper 74 is provided with a slotin line with each tack pocket 98 to permit the driving of the tack, as usual heretofore in machines of themgs since it forms no part of the present invention. To retain the tack after it has been forced into the tack pocket, there is mounted in the upper end of the delivery tube a retainer 102 of light spring metal which permits the tack to pass but by engagement with the head of the tack prevents it from returning.

For driving the tack or tacks, a lever 104 is 'pivotally mounted at 106 onthe carrier 8 and is connected at one end by a link 108 to a driver carrier or slide 110 movable in guideways in the carrier 8 and having a driver or drivers 112 fast thereon, the number of such drivers depending upon the number of the tack pockets 98. It will be understood that when the gripper jaw 38 is moved to close it upon the upper it carries the tack with it, the arrangement being such that the tack thus carried'beyond the end of the driver 112 as illustrated in Fig. 2. The shoe-controlled opening movement of the gripper jaw 38, ettected by the action of the cam face 90 on the roll 7 8 as hereinhet'ore explained, is depended upon to bring the tack pocket 98 into alinement with the driver 112, and it is for this purpose that the cam 90 and the face 96 on the clamp member 7 6 are so shaped as to pre' determine the same position for the movable gripper jaw 38 at the end of its upper releasing movement, irrespective of the extent of the inward movement of the gripper.

For imparting operative tzuzk-driving movement to the lever 1.04, the lever at its outer end is connected by links 114 to a slide 116 which is mounted within a recess or slideway in the carrier 8 and is fast on the inner end of the sleeve 44 hereinbetore mentioned. While only one of the links 114 is shown in the drawings, it will be seen that the lever 104 is forked at its outer end, and it will be readily understood that a similar link is provided on the opposite side of the mechanism. The sleeve 44 at its inner end is guided on the short sleeve 46 which encircles the rod 40, and at its outer end the sleeve 44 has an enlarged head 118 which bears on the inner surface of the sleeve 10. Between the head 118 and a shoulder on the carrier 8 a spring 120 is mounted, and when the parts are positioned as illustrated in Fig. 1 this spring is under comparatively heavy compression. To hold the parts of the tack-driving mechanism in the positions of Fig. 1, there is pivotedon the carrier 8 a latch 122 which engages a projection on the slide 116 to hold the slide from movement toward the right, the latch being held in operative position by a spring plunger 124. It will be understood that when the latch 122 is operated to releasethe slide 116, the spring 120 is rendered effective to move the sleeve 44 and the slide 116 toward the right, thereby imparting tack driving movement to the lever 104. The positions of the parts-atthe end of the tack-driving operation are illustrated in Fig. 3, where it will be seen that the slide 116 is in engagement with a buffer 126 of yieldable material which provents objectionable shock.

The operation of the latch 122 to release the tack driving mechanism is effected, under control of the shoe, by movement of the support 4 and the bearing member 6 relatively to the carrier 8, against the resistance of the spring 32, when the abutments 92 in engagement with the shoe prevent further movement of the carrier. As the support 4 and the bearing member 6 thus continue their movement toward the shoe, a shoulder 128 on the member 6 comes into engagement with the end of a rod or plunger 130 which is slidably mounted in the carrier 8 and is arranged to acton the latch 122 to swing it out of operative position.

It will be understood that when the parts are positioned as indicated in Fig.1. 3 the head 11.8 on the sleeve 44 and. the nut 42 on the rod 40 are projected outwardly from within the sleeve 10 considerably farther than indicated in Fig. 1. T he return of these parts to starting position, and the consequent opening 01 p per and retraction of the tack driving means, are etlected in response to reverse movement of the support- 4 and the gripper and tacker unit toward the right or away from the shoe. and torthis purpose there provided a fixed abutment 132 into engagement with which the

parts

42 and 118 are cz .rriod. In this way the rod 40 and the slide 116 are again so positioned as to be caught and held by the members 62 and 122 respectively. 'lhereupon the support 4 is moved for a short distance toward the left before coming to a stop, that is, to the position of Fig. 1, to afford room for such movement of the rod 40 as is necessary to close the gripper on the upper.

To hold the shoe from up ward movement in response to the pressure of the overwiping and tack driving means, there is provided a shoe restor support 134 (Fig. 3) for engaging the shoe on the top of the forepart. This shoe rest may beconstructed, mounted and operated in any appropriate manner, not herein illustrated, since the invention is not dependent upon the character of the shoe positioning means.

In the operation of a machine includingmechanism embodying this invention, each gripper carrier 8 with its supported gripper, wiper and tackerwill have first been tipped or turned by manipulation oi the screw 30 so that the surface of the wiper 74 will be substantially parallel with the edge of the shoe bot tom at that portion of the shoe upon which it is to operate, and the abutments 92 will have been adjusted by aid of the clamping screws 94 to determine the extent of inward novement of the gripperover the shoe bottom and in consequence the distance of the tacks from the edge of the shoe bottom. lVith the parts thus adjusted, the shoeis positioned upon the shoe support, including the sole engaging member 2, and the margin of the upper materials inserted between the gripper jaws, whereupon the lever 68 of each gripper and tacher unit is depressed manually to cause the gripper to close on the upper.- U ward movement is then imparted to the shoe rest 2 to cause the grippers to pull the upper over the last, and if the machine is operated by power, such movement will take place immediately upon the starting of the machine. Thereafter inward movement toward the shoe is imparted to each gripper and tacker unit through movement of its support l, causing the gripper to pull the margin of the upper inwardly over the sole and rendering the Wl per Tet ell'ective to wipe the upperover the edge of the sole, while clamping the upper against the last with increasing pressure through the clamp member 76.- As the gripper and the wiper are thus moved inwardly, and as the clamping and Wiping pressures on theupper increase, the gripper is caused to relax its grip on the upper, under control of the shoe 'through the action of the clamp n'iember 76, permi ting" the upper first to slip in the gripper jaws and finally releasing it. In this inward movement of the gripper and the wiper, the gripper and tucker unit is tipped downwardly about its axis 18 against the resistance of the spring: plunger 22 in response toresistanee encountered by the wiper in engagement with the shoe, and the spring plunger 22- thus become'sfeflective to increase the pressure of the wiper on the upper. hen the abutments 92 have arrived in position to engage the shoe, the gripper jaw 38 has been opened far enough to aline the tack pocket 98 with the tack driver 112, and as the support t continues its movement, it carries with it the bearing member 6 which now is moved relatively to the carrier Sagainstthe resistance of the spring 32,'the latter by its Patentot the United States compression adding further to the holding pressure of theabutments 92 on the upper. In this continued movement of the support l the shoulder 128 arrives in position to impart inward movementlo the plunger 130 to cause the latch 122 to release the slide 116, whereupon the spring 120 is renderedellective to impart operative movement'to the lever 10 i, thuscausing the tacl drivers 112 to drive the tacks. Thereafterthe support 4 is moved reversely to carry the unit away from the shoe and the parts of the unit are returned to their starting positions by the action of the abutment 132, the support at finally coming to rest in the position indicated in Fig. 1.

lVhile the invention islicrein illustrated in its application to mechanism arranged to operate upon a shoe positioned bottom downward, and in an organization in, which pull ing of the upper results from movement of the shoe support relatively to the grippers, it will be understood tliat in many of its features the invention is not limited in these respects. lt also to be understood that the invention is not limited in respect to the form of fasteniiiur or tastenings used to secure the upper, andthat theterm tack and similar terms are used herein for convenience of dos ignation and not by way of limitation.

Having described the invention, what l claim as nei' and desire to secure by Letters 1. In mechanism of the Clans described, the combination with shoe positioning means, of a gripper for pulling the upper of the slice over its last, and means controlled by the shoe for causing the gripper to release the upper.

2. In mechanism of the class described, the conibinat-ion with shoe positioning means, of a gripper for pulling the upper oi the shoe over its last, said gripper being movable to carry the margin of the upper inwardly over the bottom er the last, and means controlled by the shoe to cause the gripper to relax its grip on the upper in time relation to its inwardmoyement; i

In mechanism otythe class described, the combination with shoe positinning means, of a gripper for pulling the upper oi the shoe over its last, a device for clamping the upper on the last tohold the upper against loss oi tension, and mechanisn'i controlled by the shoe through said clamping device for cans ing the gripper to release the upper.

at. In mechanism of the class described} the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over itslast, said gripper being movable inwardly over the bottom of the last, and

mechanism automatically operative in' response to the inward movement oil the gripper to cause the grip'perto release the upper.

In mechanism of the class described, the combination with shoe positionin'g'means. of

a gripper jforpulling the upper of the shoe over its last, said gripper being movable inwardly over the bottom of the last, a member for clamping the upper on the lateral periph cry of the last to hold the upper against loss of tension, and mechanism controlled by said clamping member and operative in response to the inward movement of the gripper to cause the gripper to release the upper.

6. In mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper oi the shoe over its last, said gripper being movable inwardly over the bottom of the last, a device for applying i ncreasing clamping pressure to the upper on the lateral periphery of the last, and means arranged to be acted upon by said clamping device to cause the gripper gradually to relax its grip on the upper as the gripper moves inwardly.

7. In mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, said gripper being movable 1nwardly over the bottom of the last, a springcontrolled clamping device for applying increasing pressure to the upper on the lateral periphery of the last in the inward movement of the grippeigand mechanism controlled by said clamping device for eii'ecting a gradual opening of the gripper as said pressure increases.

8. In mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, a gripper carrier movable to carry said gripper inwardly over the bottom of the last, a clamping member movably supported on said gripper carrier and arranged to clamp the upper on the lateral periphery of the last as the gripper is moved inwardly, and mechanism on the gripper carrier controlled by said clamping member to cause the gripper in its inward movement. to relax its hold on the upper.

9. In mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, a gripper carrier movable to carry said gripper inwardly over the bottom of the last, and a device on the gripper carrier arranged to be positioned by the shoe and operative in the inward movement of the gripper to cause the gripper to release the upper.

10. In mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper oi the shoe over'its last, a spring for holding said gripper closed on the upper, and means for rendering said spring effective to clamp the upper on the last against loss of tension while simultaneously relaxing the pressure of'the gripper on the upper. W

11. In mechanism of the class described,

the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, a spring for holding said gripper closed on the upper, the gripper being movable inwardly over the bottom of the last, a device for clamping theupper on the last to hold the upper against loss of tension, and mechanism automatically operative in the inward movement of the gripper to apply the force of said spring to the clamping device while simultaneously relaxing the pressure of the gripper on the upper.

12. In mechanism of the class described, the combination with. shoe positioning means, of a gripper for pulling the upper of the shoe over its last, said gripper being movable inwardly over the bottom of the last, and mechanism controlled by the shoe in said inward movement of the gripper for positively opening the gripper to release the upper.

13. In mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, said gripper being movable inwardly over the bottom of the last, and mechanism automatically operative in response to the inward movement of the gripper to effect a positive opening of the gripper.

14(111 mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, a spring for holding said gripper closed on the upper, a gripper carrier movable to carry said gripper inwardly over the bottom of the last, clamping member movably supported on said gripper carrier and arranged to clamp the upper on the lateral periphery of the last as the gripper is moved inwardly, and mechanism on the gripper carrier arranged to be operated by said clamping member in the inward movement of the gripper to open the gripper against the force of said sprin I 15. In ntlechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, said gripper being movable inwardly over the bottom of the last and comprising a pair of gripper aws one of which is movable relatively to the other to grip or to release the upper, a gripper-closing spring and toggle connections between said spring and the movable gripper jaw for holding said 1' aw in upper-gripping position, and adevice for clamping the upper on the lateral periphery of the last constructed to operate in response to the inward movement of the gripper to flex said toggle connections and thereby to impart an opening movement to said movable gripper jaw against the force of said spring.

16. In mechanism of the class described, the combination with shoe positioning means,

luu

Ill

of means for pulling the upper of the shoe over its last comprising a gripper carrier and a pair of gripper jaws thereon one of which is movable toward or from the other jaw to grip or to release the upper, said gripper carrier being movable to carry the jaws inwardly over the bottom of the last, a pair of toggle members pivotally mounted respectively on the gripper carrier and on said movable jaw and pivotally connected together, a spring arranged to act on one of said members to hold said movable jaw in upper gripping position, and a device on said gripper carrier for clamping the upper on the lateral periphery ot the last as the gripper moves inwardly over the bottom of the last, said clamping dc- "v'lco being constructed to operate on the other of said members in response to the inward movement of the gripper to impart opening movement to said movable gripper jaw while simultaneously increasing the stress of said spring.

17. in mechanism of the class described, the combination with shoe positioning means, of means for pulling the upper ot' the shoe over its last comprising a gripper carrier and. a pair of gripper jaws thereon one of which is movable toward or from the other jaw to grip or to release the upper, said gripper carrier being movable to carry the jaws inwardly over the bottom of the last, a. pair of bell-crank levers one of which is pivotally mounted on said gripper jaw and the other on said gripper carrier with one arm of each of said levers pivotally connected to an arm of the other, a spring arranged to act on the other arm oi that lever which is on the gripper carrier to hold the movable gripper jaw in upper gripping position, and a clamping device movably mounted on the gripper carrier for clamping the upper on the lateral periphery of the last in the inward movement of the gripper, said clamping device beingconstructed to act onthe other arm of that lever which is on the gripper jaw in response to the inward movement oi the gripper carrier to impart to both said levers swinging movement for opening the gripper and simultaneously increasing the stress of said spring.

18. la mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper ot' the shoe over its last, said gripper being movable inwardly over the bottom of the last,'a member arranged to be positioned by engagement with the shoe, and mechanism movable with the gripper and arranged to be acted upon by said member to open the gripper in time relation to its inward movement.

19. In mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, said gripper being movable inwardly over the bottom of the last, a. mem- 20. in mechanism oi the class described,

the combination with shoe positioning means, ot a gripper for pulling the upper of the shoe over its last, a gripper carrier movable to carry said gripper inwardly over the bottom of the'last, a member movably mounted on said gripper carrier and arranged to be positioned by engagement with the shoe, and mechanism on the gripper carrier arranged to be operated by said member in response to the inward movement of the gripper carrier to open the gripper.

21. In mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last comprising a pair of jaws one of which is movable toward or from the other to grip or to release the upper, said gripper being movable inwardly over the bottom of the last, a member arranged to be positioned by engagement with the shoe and having a cam face thereon, and lever mechanism connected tosaid movable jaw and arrangedto be operated by said cam face in the inward movement of the gripper to impartupper releasing movement to said movable aw.

22. In mechanism of the class described,

the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, a gripper carrier movable to carry said gripper inwardly over the bottom of the last, a device mounted on said gripper carrier for clal'i'iping the upper yieldingly on the lateral periphery of the last as the gripper is moved inwardly, said device having a cam face thereon, and mechanism arranged to be acted upon by said cam face to effect a predetermined opening of the gripper in its inward movement.

23. In mechanismort the class described, the combination with shoe ositioning means, of means for pulling the upper of the shoe over its last comprising a gripper carrier and a pair of gripper jaws thereon one of which is movable toward or from the other to grip or to release the upper, said gripper carrier being movable to carry. the gripper jaws inwardly over the bottom of the last, a device mounted on said gripper carrier for clamping the upper on the lateral periphery of the last as said jaws are moved inwardly, said clamping device comprising a member having a lue cam it'ace thereon, and mechanism comprising a lever pivotally mounted on said movable jaw and arranged to be acted upon by said cam face to etlect a predetermined,openmg movement of said jaw in the inward move.

the combination witl shoe positioning means, of a gripper for pulling the upper ot the shoe over its last, gripper carrier movable to carry said gripper inwardly over the bottom of the last, a clamping member mounted on said gripper carrier for clamping the upper yieldingly on the lateral periphery oi? the last as the gripper is moved inwardly, mechanism controlled by said clamping member and operative in response to the inward movement of the gripper carrier to cause the gripper to release the upper, and an abutment on the gripper carrier arranged to engage the shoe to limit the inward movement of the gripper. V

25. In mechanism of the class described, the combination with shoe positioning means, of means for pulling the upper oi the shoe over its last comprising a gripper carrier and a pair of gripper jaws thereon relatively movable to grip or to release the upper, said grip per carrier being movable to carry the gripper jaws inwardly over the bottom of the last, a spring-controlled clamping member on said gripper carrier arranged to clamp the upper on the lateral periphery of the last, mechanism controlled by said clamping member and operative in response to the inward movement of the gripper carrier to ellect a. gradual relative opening movement oi the gripper jaws as they are moved inwardly, and an abutment fast on the gripper carrier adjacent to said clamping member for engaging the shoe to. limit the inward movement of said jaws.

26. In mechanism of the class described, the combination with shoe positioning means, of means for pulling the upper of the shoe over its last comprising a gripper carrier and a pair of gripper jaws thereon relatively movable to grip or to release the upper, said gripper carrier being movable to carry the jaws inwardly over the bottom of the last, an abutment on said gripper carrier for engaging the shoe to limit the inward movement of the jaws, said abutment being adjustable to vary the limit of said movement, and means for effecting a relative opening movement of the gripper jaws in the course of their inward movement comprising a shoe engaging device yieldably positioned on the gripper carrier and operative in the inward movement of said carrier to effect a relative opening movement of the jaws of invariable extent irrespective of the adjustment of said abutment.

27. In mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, said gripper comprising a pair of jaws movable to carry the margin of the upper inwardly over the bottom of the last, means i or varying the extent of such inward movement of he jaws for diflerent shoes, and shoe-controlled mechanism automatically op erative in such inward movement to open the gripper to the same extent irrespective oil": variationot' the extent of the inward movement of the jaws.

28. In mechanism of the class described, the con'ibination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, a gripper carrier movable to carry said gripper inwardly over the bottom of the last, a spring-controlled member on said gripper carrier for clamping the upper yieldingly on the lateral periphery of the last as the gripper is moved inwardly, and an abutment on the gripper carrier arranged to engage the shoe to limit the inward movement ot the gripper.

29. In mechanism oil the class described, the combination with shoe positioning means, of a combinei'l gripper and wiper movable as a unit inwardly over the bottom of the shoe to pull the upper over the edge of the sole and wipe it into position to be fastened, and means controlled by the shoe to cause the gripper to relax its grip on the upper in time relation to the inward movement of the gripper and wiper.

o0. In mechanism of the class described, the combination with shoe positioning means, of a gripper carrier having a gripper and a wiper the upper inwardly over the bottom of the last, a clamping device on said gripper carrier arranged to clamp the upper yieldingly on the lateral periphery oi the last in the inward movement of said carrier, and mechanism controlled by said clamping device to cause the gripper gradually to relax its hold on the upper in time relation to the inward movement of the gripper and wiper.

81. In mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, a wiper movable to wipe the up per inwardly over the bottom of thelast, and means controlled by the shoe to cause the gripper to release the upper in time relation to the inward movementof the wiper.

32. In mechanism of the class described, the con'ibination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, a wiper movable to wipe the upper inwardly over the bottom of the last, a controlling meu'iber arranged to be positioned by engagement with the shoe, and mechanism movable with the wiper and controlled by said member to cause the gripper to relax its grip on the upper as the wiper is moved inwardly.

In mechanism of the class described, the combination with shoe positioning means, of upper pulling means comprising a gripper carrier and a pair of: gripper aws thereon,

said gripper carrier being movable to carry the jaws inwardly over the bottom of the last, one of said jaws beingfixed on the gripper carrier and the other jaw movable toward or from the fixed jaw to grip or to releasethe thereon and movable to pull and wipe upper, and a wiper carried by said movable jaw for wiping the upper inwardly over the bottom of the last.

34. In mechanism of the class described, the combination with shoe positioning means, of a gripper comprising a pair of jaws one of which is movable toward or from the other to grip or to release the shoe upper, a springoperated gripper closing member, a catch for releasing said member, and toggle connections between said closing member and the movable jaw to close said jaw on the upper through the movement of said member.

In mechanism of the class described, the combination with shoe positioning means, of upper pulling means comprising a gripper carrier and a pair of gripper jaws mounted thereon, one of said jaws being movable toward or from the other to grip or to release the upper, a spring-operated gripper closing member on said grip oer carrier movable in a direction substantially parallel to the plane of the shoe bottom to close said movable jaw on the upper, and operating connections between said closing member and the movable jaw.

In mechanism of the class described, the combination with shoepositioning means, of upper pulling means comprising a gripper carrier and a pair of gripper jaws thereon,

one of said jaws being movable toward or from the other to grip orto release the upper, a spring-operated gripper closing member operatively movable in a direction substautially parallel to the plane of the shoe bottom, and lever connections between said closing member and the movable jaw for closing said jaw on the up er. i

37. In mechanism of tie class described, the combination with shoe positioning means, of upperpulling means comprising a gripper carrier and a pair of gripper jaws thereon, a spring-operated gripper closing member movable in a direction substantially parallel to the plane of the shoe bottom to effect relative closing movement of said jaws, and a catch arranged to hold said closing member with the jaws in open position and=to be perated manually to release said member.

38. In mechanism of the class described, the combination with shoe positioning means, of upper pulling means comprising a gripper carrier and a pair of gripper jaws thereon one or which is movable toward or from the other to grip or to release the upper, a spring'operated gripper closing member on said carrier, lever connections between said closing member and the movable gripper jaw, and a catch arranged to hold said closing member with said aw in open position and to be operated manually to release said member for closing the jaw on the upper.

In mechanism of the class described, the combination with shoe positioning means, 01'' a gripper for pulling the upper or the shoe over its last comprising a pair of jaws relatively movable to grip or torelease the upper, a spring-operated gripper closing rod extending in substantially parallel relation to the plane of the shoe bottom, and mechanism operated by said closing rod for effecting relative closing movement of the gripper aws.

410. In mechanism of the class described, thecombination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, said gripper comprising an inner jaw and an outer jaw movable toward or from said inner jaw to grip or to release the upper, a spring-operated gripper closing rod extending outwardly from the shoe in substantially parallel relation to the planeof the shoe bottom, and lever connections between said closing rod and the movable gripper jaw for imparting upper gripping movement to said jaw.

ll. In mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, said gripper comprising a pair of jaws relatively movable to grip the upper and movable inwardly and outwardly over the bottom of the last, j aw-closing means, and a device arranged to act on said jaw-closing means in response to the outward movement of said jaws to effect relative opening movement of the j aws.

42. In mechanism of the class described, the combination with shoe positioningmeans, of a gripper forpulling the upper of the shoe over its last, said gripper-comprising a pair of jaws relatively movable to grip the upper and movable inwardly and outwardly over the bottom of the last, springoperated gripper closing means movable with said gripper, and an abutment arranged to operate upon said closing means in response to the outward movement of the gripper to effect relative opening movement of the jaws. j

43. In mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the, upper of the shoe over its last, said gripper comprising a pair of jawsrelatively movable to grip the upper and movable inwardly and outwardly over the bottom of the last, spring-operated gripper closing means comprising a closing rod extending outwardly in substantially parallel relation to the plane of the shoe bottom, and an abutment arranged to act on said rod in response to the outward movement of the gripper to eiiect relative opening movement of the jaws.

44. In mechanism of the class described, the combination with shoe positioning means, of upper pulling means comprising a gripper carrier and a pair of gripper aws thereon, said gripper carrier being movable to carry the jaws inwardly over the bottom of the shoe and movable reversely to return the jaws, a spring-operated member on said gripper carrier for effecting relative closing movement of the jaws, and means arranged to act on said closing member in response to the reverse movement of the gripper carrier to return said member to jaw -opening position.

45. In mechanismof the class described, the combination with shoe positioning means, of upper pulling means comprising a gripper carrier and a pair of gripper jaws thereon one of which is movable toward or from the other to grip or to release the upper, said gripper carrier being movable in directions substantially parallel to the plane of the shoe bottom to carry said jaws inwardly over the bottom of the last and to return them, a spring-operated gripper closing member on said gripper carrier connected to the movable jaw and movable in a direction substantially parallel to the plane of the shoe bottom to close said jaw on the upper, and an abutment arranged to engage said closing member in response to the return movement of the gripper carrier to restore said member to jawopening position. a

46. In mechanism of the class described, the combination with shoe positioning means of a gripper comprising a pair of jaws relatively movable to grip or to release the shoe upper and movable together inwardly and outwardly over the bottom of the last, a gripper closing member for effecting relative closing movement of said jaws, and an abutmentarranged to operate upon said closing member in response to the outward movement of the jaws to restore said closing memberto jaw-openingposition. V

47. In mechanism of the class described, the combination with shoe positioning means, of a gripper comprising a'pair of jaws relatively movable to grip or to release the shoe upper and movable together inwardly and outwardly over the bottom of the last, a spring-operated closing member for effecting relative closiugmovement of said jaws, a catch for releasing said closing member, and means operative in response to the outward movement of the gripper jaws to return said closing member into position to be held by said catch.

. 48. In mechanism oi the class described, the combination with shoe positioning means, of; upper pulling means comprising a gripper carrier and a pair of gripper aws thereon, said gripper carrier being movable to'carry the jaws inwardly over the bottom of the last and reversely movable to return the jaws, a spring-operated gripper closing member on said gripper carrier movable in a direction substantially parallel to the plane of the shoe bottom to efiect relative closing movement of said j aws, a catch arranged to hold said closing member in jaw-opening posit ion and to be operated manually to release said member, and an abutment arranged to operate upon said closing member in the reverse movement of the gripper carrier to returnsaid member into position to be held by said catch.

49. In mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, said gripper being movable to carry the margin of the upper inwardly over the bottom of the last, shoecontrolled means for opening the gripper enough to release the margin of the upper as the gripper is moved inwardly, and automaticineans for thereafter restoring the gripper to fully open position. a i

50. In mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, said gripper being movable inwardly and outwardly over the bottom of the last, shoe-controlled means operative in response to the inward movement of the gripper to cause the gripper to relax its grip on the upper, and mechanism.operative in response to the outward movement of the gripper to restore the gripper to fully open position.

51. In mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, a spring for closing said gripper on the upper, a manually controlled catch for releasing said spring to render it operative, and means controlled by the shoe tor causing the gripper to release the upper.

52. In mechanism of the class described, the combination with shoe positioning means, of a pulling-over device comprising a gripper and a wiper movable inwardly over the bottom of the shoe to lay the margin of the upper over the sole. said device being adjustable about an axis substantially parallel to the direction of its inwardmovcment, and means for adjusting said device and for bolding it in adjusted position.

53. In mechanism of the class described, the combination with shoe positioning means, of a pulling-over device comprising a grip per and a wiper movable inwardly over the bottom of the shoe to lay the margin of the upper overthe sole, a bearing member in which said device is mounted. to turn about an axis extending outwardly from the shoe and substantially parallel to the plane of the shoe bottom, and a threaded member rotatable in said bearing member to turn the device about said axis.

54. A mechanism of the class described, the combination with shoe positioning means, of a gripper and taclter unit movable inwardly over the bottom of the shoe and having upper gripping, wiping and tacking means thereon adjustable together about an axis extending substantially parallel to the plane of the shoe bottom and to the direction of such inward movement.

55, In mechanism of the class described,

iii)

ILU

the combination with shoe positioning means, of a gripper carrier having a gripper and a wiper thereon and mounted for movement to carry said gripper and wiper inwardly over the bottom oi the shoe, said gripper carrier being mounted also to turn about an axis substantially parallel to the direction oi said movement, and rotatable means for adjusting the carrier about said axis.

In mechanism of the class described, the combination with shoe positioning means, of a gripper comprising a pair of jaws one oi which is mounted for rectilinear move ment toward or from the other to grip or to release the shoe upper, said movable jaw being constructed to serve alsoas a tack holder, and co-operating means for driving a tack from said tack holder to fasten the upper. j

57. In mechanism of the class described, the combination with shoe positioning means,

01 a gripper comprising a pair of jaws one i of which is movable toward or. from the other to grip or to release the shoe upper, said movable jaw having a tack pocket therein, tack supplying means arranged to aline with said tack pocket in one position only of said movable jaw, and means for driving a tack from said pocket when the jaw is in a diiier' ent position. j

58. In mechanism of the class described, the combination with shoe positioning means, of upper fastening means comprising a tack supplying tube and a tack driver, and a gripper for pulling the upper comprising a pair of j aws one of which is movable toward or from the other and is provided with a tack pocket to aline with the tack tube in one position of said movable jaw and with the tack driver in another position of said aw.

59. In mechanism of the class described, the combination with shoe positioning means, of a gripper comprising a pair of jaws one of which is movable toward or from the other to grip or to release the shoe upper, said movable jaw being constructed to serve as a tack holder and having also thereon a wiper lor wiping the upper inwardly over the bottom 01' the last, and means for driving a tack from said tack holder to fasten the upper.

60. In mechanism of the class described, the combination with shoe positioning means, of a gripper comprising a pair of jaws one of which is movable toward. or from the other to grip or to release the shoe upper, said movable jaw being constructed to serve also as a tack holder, a gripper carrier movable to carry said jaws inwardly over the bottom of the last, and tack supplying and driving devices on said gripper carrier relatively to which said tack holding jaw is movable in gripping or releasing the upper.

61. In mechanism of the class described, the combination with shoe positioning means,

of a gripper carrier, a gripper jaw fast on said carrier, a co-operating gripper jaw slidably mounted on said carrier to move toward or from the other jaw and having a tack pocket therein, and tack supplying and driving devices from one to the other of which said tack pocket is carried by movement of said jaw.

63. In mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, said gripper being movable to carry the margin of the upper inwardly over the bottom of the last and comprising a pair of jaws one of which is movable toward or from the other to grip or to release the upper, said movable jaw being constructed to serve also as a tack holder, a tack driver, and means controlled by the shoe for imparting to said movable jaw in the inward movement of the gripper over the last an opening movement to release the upper and to bring a tack in said tack holder into alinement with the driver. a

64. In mechanism of the class described,

on said carrier for driving the tack when the the combination with shoe positioning means, i

of agripper comprising a pair of upper gripping jaws, a gripper carrier movable to carry said jaws inwardly over the bottom of the shoe, one of said jaws being movabletoward or from the other to grip or to release the upper and having a tack pocket therein, a tack driver on said gripper carrier, and upper clampingmechanism operative in response to the inward movement of the gripper carrier to impart to said movable gripper jaw a predetermined opening movcment to release the upper and to bring the tack pocket into alinement with the driver.

65. In mechanism ot the class described, the combination with shoe positioning means, of a gripper movable to carr the margin of the upper inwardly over the bottom of the last and conilprising a pair of upper gripping jaws one oi which is movable toward or from the other to grip or to release the upper, said movable jaw having a tack pocket therein, a tack driver movable inwardly with said gripper, and cam means cont-rolled by the shoe in the inward movement of the gripper for imparting to said movable jaw a predetermined opening movement to release the upper and to bring said tack pocket into alinement with the driver. a

66. I11 mechanism of the class described, the combination with shoe positioning means, of a gripper for pulling the upper of the shoe over its last, said gripper. comprising a pair of jaws movable to carry the margin of the upper inwardly over the bottom of the last, means for varying the extent of such inward movement of the jaws, one of said jaws being movable toward or from the other to grip or to release the upper and having a tack pocket therein, a tack driver, and shoe controlled mechanism automatically operative. in the inward movement oi": the gripper-over the last to impart to said movable gripper jaw an opening movement of such extent as to bring its tack pocket into the same relation to the driver irrespective of variation of the extent of inward movement of the gripper.

67, In mechanism of the class described, the combination with shoe positioning. means, of a gripper for pulling the upper of the shoe over its last, a gripper carrier movable to carry said gripper inwardly over the bottom of the last, said gripper comprising a pair of jaws one of which is movable toward or from the other to grip or to release the upper and has a tack pocket therein, a tack driver on said gripper carrier, an abutment on said :arrier for engaging the shoe to limit the inward movement of the gripper, said abutment being adjustable to vary the limit of said movement, and shoe controlled mechanism on said gripper carrier automatically operative in response to the inward movement of the gripper to impart to said movable jaw an opening movement of such extent as to bring its tack pocket into alinement with the driver irrespective of the adjusted position of said abutment.

68. In mechanism of the class described, the combination with shoe positioning means, of upper pulling means and upper fastening means movable to pull the margin of the upper inwardly over the edge of the sole and to position the fastening means relatively to said edge, and means controlled by the shoe to cause the upper pulling means to release the upper and to cause the fastening means to fasten the upper.

69. In mechanism of the class described, the combination wit-h shoe positionin means, ot a combined gripper and tacker movable as a unit to pull the marginot the upper inwardly over the edge of the sole and to position the tucker relatively to said edge, a device controlled by the shoe to cause said gripper to relax its hold on the upper as the upper is pulled inwardly, and shoe-controlled means for thereafter rendering the tacker operative to fasten the upper.

70. In mechanism of the class described, the combination with shoe positioning means, of a gripper and tacker unitmovable to pull the margin of the upper inwardly over the edge of the sole, said unit comprising two parts one of which has a gripper and a tackcr thereon and means to limit its movement by engagement with the shoe and the other of which is movable relatively to said lirstnamed part when the latter is stopped by the shoe, shoe controlled means on said first part to cause the gripper to release the upper, and mechanism operative in response to relative movement of said parts when the inst-named part is stopped by the shoe to render the tack er operative to fasten the upper.

71. In mechanism of the class described, the combination with shoe positioning means, oi a gripper carrier having a gripper. and a tacker thereon, a bearing member serving as a support for said carrier and movable in a direction substantially parallel to the plane of the shoe bottom to carry the gripper inwardly over the bottom of the shoe, said hearing member being movable relatively to the carrier in response to resistance of the shoc, yieldable means on said gripper *arricr ope erative in response to resistance of the shoe to cause the gripper to release the upper, and mechanism operative in response to movement of said bearing member relatively to the carrier to render the tacker operative to fasten the upper. a I

72. In mechanism of the class described, the combination with shoe positioning means, of a gripper carrier having a gripper and a tacker thereon and movable to carry the gripper inwardly over the bottom of the shoe and to position the tacker, said gripper carrier having means thereon for engaging the shoe to limit its inward movement, and mechanism movable relatively to said carrier when its movement is thus stopped torender the tacker operative to fasten the upper.

73. In mechanism of the class described, the combination with shoe positioning means, of agripper carrier having a gripper and a tack driver thereon, spring means for operating said tack driver, a member for imparting movement to said gripper carrier to carry the gripper inwardlyovcr the bottom of the shoe, said member being movable relatively to the gripper carrier in response to resistance of the shoe, and a device operative in response to movement of said member relatively to the carrier to release the ta ckrlriver for driving the tack. it

74:. In mechanism of the class described, the combination with shoe positioning means,

of a gripper carrier ha-vlng a gripper and a tack driver thereon, a spring for operating said tack driver, a bearing member supporting said gripper carrier for moving it inwardly toward the shoe and movable relatively to said carrier in response to resistance of the shoe, spring means opposing resistance to such relative movement, and a gripping de lit) vice on said carrier arranged to be operated by "said bearing member to release the tack driver tothe actionof its spring.

75. In mechanism of the class described, the combimmtion with shoe positioning means, of a support having a gripper and a tacker thereon; and movable to carry the gripper inwardly over thebottom of the shoe and to position the tacker, said t acker comprising a tackdriver and a member movable in direction substantially parallel to the plane of the shoe bottomto operate said driver, and a spring for imparting opt-native movement to said member.

to. In mechanism of the class described, the combination with shoe positioning means, ot a support having a gripper and a tacker thereon and movable to carry the gripper inwardly over the bottom of the shoe and to po' sition the tucker, said tacker comprising a tack driver and a spring-operated member movable in a direction substantially parallel to the plane of the shoe bottom to operate said driver, a latch for holding said member in idle position, and means operative in response to resistance of the shoe in the inward movement of said support to cause the latch to release said member.

7?. In mechanism of the class described, the combination with shoe positioning means, of a support having a gripper and a tacker thereon and movable to carry the gripper inwardly over the bottom of the shoe and to position the tacker, said tacker comprising a tack driver, a lever for operating said driver, a lever-operating member movable in a direction substantially parallel to the plane of the shoe bottom, and a link connecting said member and lever.

78. In mechanism of the class described, the combination with shoe positioning means, of a support having a gripper and a tacker thereon and movable to carry the gripper inwardly over the bottom of the shoe and to position the tacker, said tacker comprising a. tack driver, a lever mounted to swing in a direction transverse to the plane of the shoe bottom for operating said driver, a member: movable in a direction substantially parallel to the plane of the shoe bottom for operating said lever, and a link connecting said member to the lever.

79. In mechanism of the class described, the combination with shoe positioning means, of a support having a gripper and a. tack driver thereon, and gripper closing and tack driver operating mechanisms comprising spring-operated members movable in directions substantially parallel to the plane of the shoe bottom to close the gripper and to operate the driver.

80. In mechanism of the class described, the combination with shoe positioning means, of a support having a gripper and a tack driver thereon, and means for closing the gripper and for imparting operative move- I ment to the tack driver comprising concentric plungers movable in directions substantially parallel to the plane of the shoe bottom, springs for imparting. operative movements to said plungers, andinembers for releasing the plungers to the action of their springs.

81. In mechanism of the class described, the combination with shoe positioning means, of a support having a gripper and a. tacker thereon and movable to carry the-gripper inwardly over the bottom of the shoe and to position thetacker, said tacker comprising a tack driver and a spring for operating. said driver, and means operative in response toreverse movement of said support after the tack driving operation to reset the driver against the resistance of its spring.

82. In mechanism of the class described, the combination with shoe positioning means and means for pulling the upper of the shoe over its last, of upper factening means comprising a tack driver movable in a direction transverse to the plane of the shoe bottom to fasten the upper to the bottom face of the sole, and a. spring-operated member movable in a direction substantially parallel to the plane of the shoe bottom to operate said tack driver.

83. In mechanism of the class described, the combination with shoe positioning means and means for pulling the upper of the shoe over its last, of upper fastening means comprising a. tack driver, a lever mounted to swing in a direction transverse to the plane of the shoe bottom to operatesaid driver, a spring-operated plunger movable lengthwise of said lever, and a connection between said plunger and lever to render the plunger effective to operate the lever.

8a. In mechanism of the class described, the combination with shoe positioning means and means for pulling the upper of the shoe over its last, of upper fastening means mounted for positioning movement as a unit relatively to the shoe and comprising a tack driver and a member movable in a direction substantially parallel to the direction of said positioning movement for operating said tack driver.

85. In mechanism of the class described, the combination with shoe positioning means and means for pulling the upper of the shoe over its last, of upper fastening means comprising a tackerand a support therefor movable toward the shoe to position the tacker, said support being movable relatively to the tacker in response to resistance of the shoe, and spring means arranged to be rendered operative in response to such movement of the support relatively to the tacker to operate the tacker. g

86. In mechanism of the class described, the combination with shoe positioning means and means for pulling the upper of the shoe 'tacker in response to resistance of the said tacker comprising a tack driver and over its last, of upper fastening means comprisinga tacker and a support therefor mov- 'able toward the shoe to position the tacker,

said support being movable relatively to the shoe,

spring means for operating it, a catch for holding said spring means in idle position, and means to render said support operative in its movements relatively to the tacker to Withdraw saidcatch from operative holding position.

87. In mechanism of the class described, the combination with shoe positioning means and meansfor pulling the upper of the shoe over its last, of upper fastening means comprising a tacker and a support therefor movable toward the shoe to position the tacker, said support being movable relatively to the tacker in response to resistance of the shoe, said tacker comprising a tack driver, a lever movable in a direction transverse to the plane of the shoe bottom for operating said driver, a spring-operated plunger movable in a direction substantially parallel to the plane of the shoe bottom to operate said lever, a catch for holding said plunger in inoperative position, and means operative in response to the movement of said support relatively to the tacker to cause said catchto release the plunger.

' In testimony whereof I have signed my name to this specification.

CHARLES F. PYM.